Romans 12:16
Be of one mind among yourselves. Set not your minds on high things, but content yourselves with what is humble. Be not wise in your own conceits.
Matthew 6:25-32
Therefore I say to you, Be not anxious for your life, what ye shall eat; nor yet for your body, what ye shall put on. Is not the life more than food, and the body than raiment?
1 Corinthians 7:26-32
I think, then, that it is well, on account of the impending distress, for a man to remain as he is.
1 Timothy 6:6-9
But godliness with contentment is great gain.
Hebrews 13:5
Let your disposition be without covetousness, and be content with what ye have; for he hath said, "I will never leave thee, nor forsake thee;"